secondary breaking的意思|示意

It has been proven by tests that the rock breaker is a new practical and economical secondary breaking equipment. The application prospect of the rock breaker will be bright.

研究和试验表明，劈石器是一种新型、实用、低成本的矿岩二次破碎设备，具有广阔的应用前景。

Crack spreading area and transient breaking are observed, typical fatigue striations, fatigue steps and secondary cracks are observed on some of the fractures.

微观上在少数油管断口中观察到了典型的疲劳辉纹，在很多断口上观察到了疲劳台阶和二次裂纹。

High-energy hydraulic hammer with liquid cushion is a new and highly efficient equipment used for the secondary breaking of ore boulder occurred very often in domestic and foreign mines.

液垫式高能液压碎石器是解决目前国内外矿山普遍存在的矿岩大块二次破碎问题的新型高效设备。